Children

 Sir William de Fiennes II Ct de Fiennes
Sir William de Fiennes II was born about 1245 in Wendover, Buckinghamshire, England.  He died on July 11th, 1302 in Courtral, Flandre, Occidential, Belgium.


 Maud de Fiennes
Maud was born about 1254.  She died in 1321.


 Sir Giles de Fiennes
He died in 1293.